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Income Taxes - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Jul. 31, 2023
Jul. 31, 2022
Jul. 31, 2023
Jul. 31, 2022
Oct. 31, 2022
Income Tax Disclosure [Abstract]          
Income tax (benefit) $ 3.5 $ 3.4 $ 4.2 $ 1.2  
Pre-tax loss 19.00% 26.40% 21.20% 15.60%  
Net discrete tax expense (benefit) related to federal provision-to-return adjustment $ (1.1)   $ (1.0)    
Net discrete tax expense (benefit) related to share-based compensation   $ 0.2   $ (0.8)  
Unrecognized tax benefits $ 5.7   $ 5.7   $ 4.3